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Calling subscriber information notification

  • US 5,910,980 A
  • Filed: 04/21/1997
  • Issued: 06/08/1999
  • Est. Priority Date: 06/05/1996
  • Status: Expired due to Fees
First Claim
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1. A calling subscriber information notification system, comprising:

  • a local exchange for generating a signal message including information concerning a calling subscriber terminal; and

    an access network, located independent of said local exchange, for accommodating a plurality of subscriber terminals, and when a called subscriber has been registered for a called number notification service, sending the signal message sent from said local exchange to the called subscriber;

    wherein said local exchange has an interface for call control, which is performed by a protocol set on a control channel provided together with a communication channel on a PCM transfer path and is connected to said access network across the PCM transfer path.

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